Who Patented the First Hair Dye?

Answer Although hair coloring dates back to ancient times, the modern innovator and the first to patent hair dye was Eugène Schueller. His name may not sound familiar, but his company--- L'Oréal---is we... Read More »

Top Q&A For: Who Patented the First Hair Dye

Why can't fragances be patented?

Despite the number of new fragrances introduced each year--and the many variations in their scent, name and packaging--many colognes and perfumes are placed on the market without a patent. Several ... Read More »

Who patented the churn?

Butter-making was an essential part of daily life during the 19th and early 20th centuries. During that time, countless patents for improvements and variations on the churn were granted. The first ... Read More »

Who invented&patented the cd?

James T. Russell, a physicist and inventor, developed the first compact disc in the late 1960s. While working as senior scientist at the Pacific Northwest Laboratory of the Batelle Memorial Instit... Read More »

When was the gas mask patented?

The Department of Transportation reveals that Garrett Augustus Morgan Sr. patented the gas mask in 1912. He called the device a Safety Hood and Smoke Protector. After it saved the lives of many man... Read More »